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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2013-02-26
A Compact Tri-Band Passband Filter Based on Three Embedded Bending Stub Resonators
By
Yatao Peng,

    Dr. Yatao Peng

    Institute of Microelectronics, Chinese Academy of Sciences

    China

    Homepage

Lijun Zhang,

    Dr. Lijun Zhang

    The Institute of Microelectronics, Chinese Academy of Sciences

    China

    Homepage

Yongqing Leng,

    Dr. Yongqing Leng

    Institute of Microelectronics, Chinese Academy of Sciences

    China

    Homepage

Jin Guan

    Dr. Jin Guan

    Department of Electronics System Technology

    Institute of Microelectronics, Chinese Academy of Sciences

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 37, 189-197, 2013
doi:10.2528/PIERL12111804 | Google Scholar

Abstract
A microstrip tri-band bandpass filter (BPF) based on three embedded bending stub resonators (EBSRs) is proposed in this paper. Three resonant paths that resonate at three different frequencies can achieve three passbands. The lumped circuit models of the proposed filter are given for designing. The filter is extremely compact, whose area is about 0.047λg×0.12λg. There are two transmission zeros located between the first two passbands and a transmission zero between the second and third passbands, which results in good selectivity. For demonstrating the proposed filter structure, a filter at 0.9/2.14/3.6 GHz is designed and fabricated. The measured results are well agreed with simulated ones, which indicate the validity.
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Citation
Yatao Peng, Lijun Zhang, Yongqing Leng, and Jin Guan, "A Compact Tri-Band Passband Filter Based on Three Embedded Bending Stub Resonators," Progress In Electromagnetics Research Letters, Vol. 37, 189-197, 2013.
doi:10.2528/PIERL12111804
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